ErwanMAS created HIVE-10379:
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Summary: Wrong result when executing with tez
Key: HIVE-10379
URL: https://issues.apache.org/jira/browse/HIVE-10379
Project: Hive
Issue Type: Bug
Components: Tez
Affects Versions: 0.14.0, 0.13.0
Environment: Hortonworks sandbox 2.1.1 & 2.2.0
Reporter: ErwanMAS
I do a left join with a lateral view outer , too many row are generated with
tez .
in map reduce , i have 125 rows , in tez 132 .....
Example :
{noformat}
drop table foo ;
create table foo ( dummyfoo int ) ;
insert into table foo select count(*) from foo ;
select count(*) as cnt from (
select a.val,p.code from
( select cast((((one*5)+two)*5+three) as int) as val
from foo
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_1 as one
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_2 as two
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_3 as three ) as a
left join
( select dummyfoo as code from foo ) p on p.code=a.val
) w ;
set hive.execution.engine=tez;
set hive.vectorized.execution.enabled=false;
select count(*) as cnt from (
select a.val,p.code from
( select cast((((one*5)+two)*5+three) as int) as val
from foo
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_1 as one
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_2 as two
lateral view outer
explode(split("0,1,2,3,4",",")) tbl_3 as three ) as a
left join
( select dummyfoo as code from foo ) p on p.code=a.val
) w ;
{noformat}
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